PPSI hard restart
In the Veryx tests, the configuration is updated and hal/ppsi are restarted to apply new configuration (reboot of the switch would be very long). It seems that the memory of ppsi is not cleared and the restart of PPSI is not clean (i.e. it jumps to fast to slave, possibly because there are some left-overs in the memory). such a behavior might be desirable when PPSi dies during operation, but it is not desirable when new config is applied.
Solution: implement hard-reset of the PPSi, if used, the memory is cleared